将db查询返回到json_encode的可读关联数组？

Question

I am using ajax to pull some data from a PHP script I created. The PHP script queries the database for user information and comment information. There will be a lot of comments and I am trying to figure out how to return 3 records (LIMIT 3) - this is what I have:

foreach($results->fetch_assoc() as $key => $db_value) {
    //$array[$key] = $db_value;
    print_r($results->fetch_assoc());
}

$results->fetch_assoc() returns a single record set. I was messing around and couldn't figure it out.

What I am trying to do is have 3 arrays returned to the HTML doc via json_encode so that I can read it and display it. Can anyone help?

Answer 1

$data = array();

while ($row = $results->fetch_assoc()) {
   $data[] = $row; // stuff new row onto end of array
}

echo json_encode($data);